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The TYLOK b-dncset-4-5 is a double ferrule tube nut and collet set designed for use with CBC-Lok compression tube fittings. Each set includes one nut, one front ferrule, and one rear ferrule, all machined from brass to ASTM and industry material standards. Weighing just 0.02 pounds, this set provides the compression components needed to complete a tube fitting assembly in instrumentation, fluid, or gas systems. CBC-Lok components are manufactured domestically in the U.S.A. to strict quality control requirements, including ISO 9001:2008 certification and ABS approval.
This set is intended for use in instrumentation tubing applications where reliable, leak-free compression fittings are required. It fits 1/4 inch nominal tube size and is suited for residential, commercial, and industrial installations involving gas, fluid, or instrumentation lines. Licensed tradespeople including pipefitters, HVAC technicians, and instrumentation specialists working with compression-style tube fittings will find this set a direct-fit solution for CBC-Lok fitting bodies.
CBC-Lok tube fittings and component sets are fully interchangeable with Swagelok and Parker A-Lok double ferrule fittings. Intermixing CBC-Lok bodies and component parts with those of other manufacturers does not adversely affect sealing ability, though using all CBC-Lok components throughout an assembly is recommended.
Installation of compression tube fittings is typically performed by licensed pipefitters, instrumentation technicians, or HVAC technicians. Always depressurize and isolate the line before disassembling or assembling any tube fitting. Hand-tighten the nut to seat the ferrules, then advance with a wrench per the fitting body manufacturer's standard finger-tight-plus procedure. Follow applicable codes including ASTM F1387 for compression fittings in fluid systems.
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